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H2X, eventually designated as the AN/APS-15, [2] was an American ground scanning radar system used for blind bombing during World War II.It was developed at the MIT Radiation Laboratory under direction of Dr. George E. Valley Jr. [3] to replace the less accurate British H2S radar, the first ground mapping radar to be used in combat. [4]
FuMO 1 - Calis A: Its 6.2 x 2.5m antenna consisted of 2 rows of eight full wave vertical dipoles. Its wavelength was 82 cm and its range depended on the height it was installed above sea level, but typically was about 15–20 km. [ 7 ] Given the frequency low angle reflections from the surface, also known a clutter would have been an issue.
After the Battle of Britain, RAF Bomber Command began night attacks against German cities. Although Bomber Command had reported good results from the raids, the Butt Report showed only one bomb in twenty landed within 5 miles (8.0 km) of the target, half the bombs fell on open country, and in some cases, the bombing was seen to fall as far as 50 kilometres (31 mi) from the target.
The Norden saw reduced use in the post–World War II period after radar-based targeting was introduced, but the need for accurate daytime attacks kept it in service, especially during the Korean War. The last combat use of the Norden was in the U.S. Navy's VO-67 squadron, which used it to drop sensors onto the Ho Chi Minh Trail in 1967. The ...
Radar in World War II greatly influenced many important aspects of the conflict. [1] This revolutionary new technology of radio-based detection and tracking was used by both the Allies and Axis powers in World War II , which had evolved independently in a number of nations during the mid 1930s. [ 2 ]
This is a list of World War II electronic warfare equipment and code words and tactics derived directly from the use of electronic equipment. This list includes many examples of radar, radar jammers, and radar detectors, often used by night fighters; also beam-guidance systems and radio beacons.
This was still under development when the war ended. Although Naxos was useful against ASV Mk. III, by 1944 the British and US were already well on their way to introducing newer magnetron-based radar systems, like the American H2X, operating at even higher frequencies in the 3 cm band. The first of these ASV Mk.
The 1st Search Attack Group was a United States Army Air Forces unit that served during World War II.Its last assignment was with First Air Force.It was based at Langley Field, Virginia throughout its existence, and equipped with Boeing B-17 Flying Fortress, Douglas B-18 Bolo, and Consolidated B-24 Liberator aircraft.